Device for constructing brick floors and arches



(No Model.)

A. MATTIO-E.

DEVICE FOR GONSTRUGTING BRICK FLOORS AND ARGHES. No. 271,346. PatentedJan.30,1883.

N. Ptrzns. Phm-mho n h wann wri D. c

UNITED STATES PATENT .OEErcE.

ASA MATTIOE, OF'ULEVELAND, OHIO.

DEVICE FOR CONSTRUCTI'NG BRiCK FLOORS AND ARCHES.

SPECIFICATION forming part of Letters Patent No. 271,346, dated January30, 1883. Application filed March 15, 1882. (No model.)

To all whom it may concern:

Be it known that I, Asa MATTIGE, of Cleveland, county of Ouyahoga, andState of Ohio, have invented a new Improvement in Devices forConstructing Brick Floors and Arches; and I do hereby declare that thefollowing is afull, clear, and exact description of the same, referencebeing had to the accompanyingdrawings, and to letters of referencemarked thereon. v

My invention relates to certain improvements in devices for constructingarches be tween iron girders in fire-proof floors.

The object of the improvement is to do away with the construction ofscaffolding as commonly employed, and make the construction ofsucharches much more simple and economical than by any other means.

The manner of using my improved device is to provide a grapple of suchsize and form that it will grasp the lower flanges of the girder. Uponthis I construct what timber-sup ports are required, as will be seen inthe accompanyii'ig drawings, in which Figure 1 is a section of flooring,showing the manner in which the grapples and their attachments areplaced.

In Fig. 1, A A is the arch; B B, the girders; O C, the grapples attachedto the girders.

When it is desired to construct the arch the grapples are placed asshown and the timbers D D set in position, the blocks E E being putbetween the jaws of the grapple to prevent its tilting or moving fromits place. The timber next to the wall of a building is supported bypegs or wedges driven into the wall, there being no girder in thatplace. The grapples being in place and the timbers placed on them, asshown, the former d is laid -from one to the other and the archconstructed upon it. After this is completed and the arch is set thetimbers are removed in the following manner: The sheave-rods F arehooked into the holes provided in the ends of the grappiese c, and theblocks, timbers, 850., being driven out of their places by knocking orprying, fall into the rope, and are lowered at pleasure by one personholding the ends of the ropes.

The grapples are made in several sizes as required for differentgirders, and may be of any suitable material and form, provided thegeneral construction set forth herein is embodied, myobject being tomake a grapple which will grasp the'girder and, affording a support.

for the *former, do away with constructing expensive and cumbersomescaffolding.

Fig. 2 is an enlarged view of my invention, which consists, in part, oftwo right-angled levers, pivoted at 0, and armed with hooks on theirupright or upper ends, the other arms lying horizontally and havingholes in their outer extremities. By suspending weights to these outerends the others are made to close and firmly clasp anything placedbetween them. The mode of applying these clamps is clearly shown inFigs. 1 and 2. In use these clamps are attached to the flanges of theiron beams-or girders between which itis proposed to build brick arches,and used for supports for formers or centering, asthe temporarywood-work or framing for the construction of vaulted work is called, theends of said and all, too, without bolts orother complicatedcontrivances. It will readily be understood that these clamps can be asreadily detached as placed and transferred to other girders without theuse of any tools save the hands of the workmen. V

Having fully described my device and its mode of application, 1 willstate what I claim as my invention and wish to secure by Letters Patent:7

1. An automatic or self-acting clamp or hanger for supporting the formeror centering used in the construction of brick arches between irongirders or beams, consisting of right-angled or bell-crank leverscrossing each other, and centered or pivoted at 0., the upright endarmed with books, and the horizontal end fitted with pulleys F, incombination with timbers or supports D, constructed and arrangedsubstantially as described, and for the purpose named.

2 sumac 2. The pieces of timber D and the center one, 4. In combinationwith the grapples C O, the E, made to fit the space inclosed by arms ofsheaves F F, as and for the'purposes set forth right-angled and crossedlevers and the'bottom and described. flanges of girders, the otherslying on the top This specification signed and witnessed this of thehorizontal arms of said 1evers,combined 12th day of December, 1881. withsaid levers, for a support for the former or center for constructingbrick arches, constructedand arranged substantially as shown, and forthe purpose stated.

3. The grapple G, constructed and operated in the manner and for thepurposes set forth and described. l

i ASA "MATTICE.

Witnesses: GEO. U. TRACY, W. T. TAYLOR.

